Home / 68,942.36-103,416.52-21,558.36

Finding the Fourth Proportional to 68,942.36, 103,416.52 and 21,558.36

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Solution

The fourth proportional to 68,942.36, 103,416.52 and 21,558.36 is: 32,338.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,942.36 : 103,416.52 = 21,558.36 : x
  2. Step 2: Convert to fraction form
    68,942.36/103,416.52 = 21,558.36/x
  3. Step 3: Cross multiply
    68,942.36x = 103,416.52 × 21,558.36
  4. Step 4: Simplify right side
    68,942.36x = 2,229,490,568.11
  5. Step 5: Solve for x
    x = 2,229,490,568.11/68,942.36
  6. Step 6: Final answer
    x = 32,338.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.